7676621 has 2 divisors, whose sum is σ = 7676622. Its totient is φ = 7676620.

The previous prime is 7676611. The next prime is 7676633. The reversal of 7676621 is 1266767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 3721 = 2770^2 + 61^2 .

It is an emirp because it is prime and its reverse (1266767) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7676621 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7676611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3838310 + 3838311.

It is an arithmetic number, because the mean of its divisors is an integer number (3838311).

Almost surely, 2^7676621 is an apocalyptic number.

It is an amenable number.

7676621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7676621 is an equidigital number, since it uses as much as digits as its factorization.

7676621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 7676621 is about 2770.6715792385. The cubic root of 7676621 is about 197.2680265261.

The spelling of 7676621 in words is "seven million, six hundred seventy-six thousand, six hundred twenty-one".